Definition of "outpour"

But the raven, sitting lonely on the placid bust, spoke only / That one word, as if his soul in that one word he did outpour.

1845 February, — Quarles [pseudonym; Edgar Allan Poe], “The Raven”, in The American Review‎, volume I, number II, New York, N.Y., London: Wiley & Putnam, […]

I unsealed the vial mystical, / I outpoured the liquid thing, / And while the smoke came wreathing out, / I stood unshuddering.

1914, Elizabeth Barrett Browning, A True Dream